se/30 disk weirdness

From: Edwin P. Groot <epgroot_at_ucdavis.edu>
Date: Thu Apr 26 16:47:55 2001

     Are you sure you're not running Windows on your SE/30? Usually it's
Windows that gives me the silliest messages.
     All kidding aside I figure something's up with the external floppy
port or the floppy controller chip in the computer. Somehow it keeps
telling the Mac system a disk has been inserted in the external drive.
Does this external FDHD give the same problems to other Macs you have?
Dare you try, because this external FDHD might be screwing up the floppy
controller of every Mac you plug it into?
     The Mac boot sequence is floppy(ies), then SCSI. Holding down the
mouse button while starting up will prevent the Mac from trying to boot
from the phantom external disk, but you will still have problems with the
Mac system attempting to initialize a phantom external floppy. The Startup
item in the Control Panel won't help (are you using System 6?) because that
relates only to SCSI devices.
     Maybe something in the external floppy port is shorted or not
grounded. Find the pin assignments and test them.
     The quickest solution is to toss your board out the window and get
another SE/30 board.

     Regards,
     Edwin

At 17:49 4/25/01 -0400, you wrote:
>
>I brought home an external FDHD for my SE/30 last night, to facilitate
>retrocomputing tasks. Plugged it in, switched on the Mac, tested it out,
>shut the Mac down, and unplugged the disk.
>
>Now, when the external drive is unplugged, the system somehow still thinks
>it's there.
>ok
>r.
>
>
Received on Thu Apr 26 2001 - 16:47:55 BST